| 摘要 |
PROBLEM TO BE SOLVED: To provide a heat-shrinkable film having excellent shrinking force, heat shrinkability and adhesivity to containers. SOLUTION: This heat-shrinkable polyester film contains 1,3-propylene diol in an amount of >=1 wt.% in a glycol component, has a heat-shrinkage rate of >=20% in at least one direction in 100 deg. hot air and has a shrinkage stress of <=1 MPa at 120 deg.C. The polyester desirably comprises the mixture of a polyester A consisting mainly of ethylene terephthalate units with a polyester B consisting mainly of trimethylene terephthalate units. |
